Range Of Product Harmony Control Relays Relay Type Multifunction control relay Product Or Component Type 3-phase control relay Product Specific Application For 3-phase supply Relay Name RM17TA Relay Monitored Parameters Asymmetry Phase sequence Phase failure detection Time Delay Adjustable 0.1...10 s, +/- 10 % of the full scale value Tt- time delay upon fault Switching Capacity In Va 1250 VA Measurement Range 208...480 V AC Contacts Type And Composition 1 C/O [Uc] Control Circuit Voltage 208...480 V